How often is CL2 calibrated according to the limits?

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Multiple Choice

How often is CL2 calibrated according to the limits?

Explanation:
CL2 is the chlorine residual measurement used to control disinfection. Because the sensor response can drift and process conditions can change, calibrating the analyzer daily establishes an accurate baseline so readings reflect the true chlorine concentration. This accuracy is essential to stay within permit limits and to dose chlorine correctly. If calibration were less frequent, drift could make readings misleading, risking under- or over-chlorination.

CL2 is the chlorine residual measurement used to control disinfection. Because the sensor response can drift and process conditions can change, calibrating the analyzer daily establishes an accurate baseline so readings reflect the true chlorine concentration. This accuracy is essential to stay within permit limits and to dose chlorine correctly. If calibration were less frequent, drift could make readings misleading, risking under- or over-chlorination.

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